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27421 Nathanhan (2000 EK164)
Classification: Main-belt Asteroid          SPK-ID: 2027421
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1452627544293194 6.9892e-08  
a 2.739720639554283 2.7878e-08 AU
q 2.341741273085772 1.9178e-07 AU
i 5.634985959984764 7.5569e-06 deg
node 182.0774047142359 5.5395e-05 deg
peri 181.5971655482531 5.8482e-05 deg
M 255.0525166067056 2.0274e-05 deg
tp 2457483.366834524429
(2016-Apr-04.86683452)
9.5757e-05 JED
period 1656.371880565755
4.53
2.5282e-05
6.922e-08
d
yr
n .2173424967085516 3.3174e-09 deg/d
Q 3.137700006022795 3.1928e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      728  
   data-arc span      10845 days (29.69 yr)  
   first obs. used      1984-10-20  
   last obs. used      2014-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56035  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:57:07  

Additional Information
 Earth MOID = 1.33953 AU 
 T_jup = 3.328 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2 mag n/a MPO299154  

27421 Nathanhan           Discovered 2000 Mar. 3 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Nathan Han (b. 1999) is a finalist in the 2011 Broadcom MASTERS, a math and science competition for middle-school students, for his biochemistry, medicine, health science and microbiology project. He attends the Jackson Mann K-8 School, Allston, Massachusetts.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111210/MPCPages.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 2000 EK164 = 1984 UX4 = 1996 GA2 = 2000 GT175 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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